Im with you on the LS1. Its been a while sense the first LS was discontinued and all the sensors and rubber crap will be trashed from sitting so long. If its a simple carb setup, I would feel differently about the purchase. The 6.0s and especially the 6.2 are more desirable for the reason you stated. The L92/LS3 heads are a great bargain and the bigger bore is a requirement to run them. That in no way discounts the smaller LS versions, its just that for really big numbers with great street ability and factory parts, the 6.0 (4.00" bore)would be the smallest bore I would go with personally .